CN101370902A

CN101370902A - Methods of consolidating unconsolidated particulates in subterranean formations

Info

Publication number: CN101370902A
Application number: CNA2006800515995A
Authority: CN
Inventors: N·A·斯泰根特; P·D·阮; K·W·哈利伯顿; M·E·布劳克; 小L·E·伊斯特
Original assignee: Halliburton Energy Services Inc
Current assignee: Halliburton Energy Services Inc
Priority date: 2005-11-22
Filing date: 2006-11-06
Publication date: 2009-02-18
Anticipated expiration: 2026-11-06
Also published as: EP1963458A1; AR057607A1; US20070114032A1; CA2630319C; AU2006318933B2; BRPI0618879A2; RU2008125163A; CN101370902B; AU2006318933A1; CA2630319A1; WO2007060389A1

Abstract

The invention provides a methods for stabilizing portions of a subterranean formation that comprise unconsolidated particulates. In one embodiment, the methods of the present invention comprise: providing a consolidating agent; introducing the consolidating agent into an unconsolidated portion of a subterranean formation through a dynamic diversion tool; and allowing the consolidating agent to at least partially consolidate the unconsolidated portion of the subterranean formation.

Description

The method of cement particle not in the solid formation

Background technology

The present invention relates to the processing on stratum.More specifically, the present invention relates to be used for the stable not method of the ground layer segment of cement particle that comprises.

Technical field

Oil gas well (hydorcarbon well) is usually located at and (for example comprises not cement particle, sand, gravel, propping agent, particulate etc.) the stratum in, these not cement particle can move out of the stratum and enter pit shaft and/or can produce by the fluid that well produces with oil, gas, water and/or other.Do not expect to exist this particle in the output liquid, because these particles may be denuded the output that pumping equipment and other equipment and/or reduction come the required liquid of artesian well.In addition, especially, the particle (for example, sleeve pipe and/or eyelet inside in cased well section) that moves into pit shaft may block the pit shaft part, hinders the production of the required liquid of artesian well.Here defined term " not cement particle " and derivatives thereof comprise discrete particle and with insufficient bonding strength bonded particle, described bonding strength is not enough to stand the power that is produced by the fluid preparation by the stratum.Cement particle can not comprise, and especially, the sand in the stratum, gravel, particulate and/or proppant particles for example, are arranged in the proppant particles on stratum in pressure break or gravel filling operation process.Here defined term " unconsolidated subterranean formations ", " the not bonded section on stratum " and their derivatives comprise and contain the not any structure of cement particle (having defined this term here).Here employed those terms such as " unconsolidated subterranean formations " and " the not bonded section on stratum " comprise subterranean fracture, and wherein cement particle is not present in (for example, the inner proppant pack that forms in the crack) in the space, crack.

A kind of method of cement particle of controlling in the stratum not is included in to be provided with near the pit shaft place and contains gravel () filtering layer for example, " gravpack " is from the physical barrier that provides cement particle not to carry for required fluidic preparation.Usually, this " gravpack operation " comprise a certain amount of particle pumping and be held in place in the unconsolidated subterranean formations in adjacent well bore zone.A kind of general types of gravpack operation is included in the pit shaft places a screen cloth, and with gravel fill between screen cloth and the pit shaft around annular space, described gravel has and is used to the size that prevents that stratum sand from passing through.Screen cloth normally is used to keep the filter assemblies of the gravel of placing during the gravel filling operation.To use gravel to fill husky feature in order adapting to, can to use all size and mesh structure.Similarly, in order to adapt in the stratum the not feature of cement particle, can use the gravel of all size.For gravpack is installed, thereby by with mud form (making its tackify usually) gravel being transported to the stratum with the liquid mixing gravel.In case gravel is placed pit shaft, the viscosity of working fluid will reduce, and it gets back to the face of land.Resulting structures provides barrier for the mobile grains of sand from the stratum, still allows liquid-flow simultaneously.

Yet the use of this gravel completion method may have problems.For example, the installation gravpack is not only time-consuming but also expensive.Because required time and expense, no gravel screen cloth is placed in expectation sometimes.Even place actually in the situation of no gravel screen cloth, because formation sands trends towards having size distribution widely, so often be difficult to determine employed suitable screen mesh size.When allowing that a small amount of grains of sand flow through screen cloth, the stratum cuts out and is important suffering.As a result, in order to guarantee to control formation sands, usually must place gravel and screen cloth.In recent years, developed and used expandable sand screens.As a part of installing, inflatable sand sieve can be in order to control husky purpose, expands and need not the gravel packing layer with respect to pit shaft, cased well or bore hole.Yet expandable screens still may present such as screen erosion and screen plugging problem.

Be used for controlling the stratum not the another kind of method of cement particle comprise that cement particle is glued is stable, permeable material (mass) with will be by apply jointing compound (for example, resin or tackifier) in the stratum.Yet jointing compound is preferentially placed in the specific region that may be desirably in the stratum of being permeated by pit shaft sometimes.For jointing compound being positioned in the specific region on stratum, used the packing instrument of some type in this area, for example " packing (pack off) " equipment, pkr, gel plug (gel plug), mechanical plug, bridging plug, ball sealer etc., thereby the certain interval in packing stratum and jointing compound being placed in this interval of subterranean formation zone.Yet the use of these packing instruments may have problems.At first, in the utilization of expectation with the multiple zone on multiple different intervals processing stratum, employed packing instrument must be removed and resets with the interval of packing with aftertreatment, especially, may there be the danger of infringement stratum and/or pit shaft in this process, and increases operating cost, complicacy and time length.In addition, in the method for these packing instruments of use, usually, the outer subterranean formation zone of isolated interval is arrived in jointing compound in a certain amount of introducing stratum and/or related working fluid (treatment fluid) meeting " leakage ", thereby these methods require the relatively large jointing compound working fluid of this jointing compound (and/or carry) to guarantee the processing fully of stratum isolated interval usually.

Summary of the invention

In a specific embodiments, the invention provides a kind of method, it comprises: jointing compound is provided; This jointing compound is introduced the not bonded section on stratum by dynamic shunt instrument (dynamic diversion tool); Make this jointing compound not bonded section of solid formation at least in part.

In another embodiment, the invention provides a kind of method, it comprises: jointing compound is provided; By the dynamic shunt instrument jointing compound is introduced the not bonded section on stratum, a large amount of uncemented proppant particles are present in the stratum in this part; Make this jointing compound interior not glued proppant particles of not bonded section of solid formation at least in part.

In another embodiment, the invention provides a kind of method, it comprises: jointing compound is provided; By the dynamic shunt instrument jointing compound is introduced the not bonded section on stratum, a large amount of unconsolidated subterranean formations (unconsolidated formation) particles are present in the stratum in this part; Make this jointing compound interior unconsolidated subterranean formations particle of solid formation at least in part.

To those skilled in the art, the features and advantages of the present invention are conspicuous.Although can make many variations by those skilled in the art, these change all within spiritual scope of the present invention.

Description of drawings

These accompanying drawings are for example understood some aspect of some specific embodiments of the present invention, and they should not be used for restriction or limit the present invention.

Fig. 1 for example understands the side-view on the stratum that can handle in some specific embodiments of the present invention.

Fig. 2 for example understands the side-view on the stratum of handling in specific embodiments process of the present invention.

Fig. 3 for example understands the side-view on the stratum of handling in specific embodiments process of the present invention.

Fig. 4 for example understands the side-view on the stratum of handling in specific embodiments process of the present invention.

Fig. 5 for example understands the side-view on the stratum of handling in specific embodiments process of the present invention.

Fig. 6 for example understands the side-view on the stratum of handling in specific embodiments process of the present invention.

Fig. 7 for example understands the side-view on the stratum of having handled in specific embodiments process of the present invention.

Embodiment

I. method of the present invention

Method of the present invention generally includes: jointing compound is provided; This jointing compound is introduced the not bonded section on stratum by the dynamic shunt instrument; Make this jointing compound not bonded section of solid formation at least in part.The component that jointing compound can be used as one or more working fluids of introducing the stratum provides and/or introduces in the stratum.Here defined term " jointing compound " comprise any can good ground the material of part, this material at least can partially stabilized not cement particle, thereby stops them to move or move.Here defined term " dynamic shunt instrument " comprises that any speed according to liquid in the pit shaft can change (for example, increasing) this liquid and enter the equipment of formation velocity.The inventive method can be used for the interval of not bonded section through selecting of solid formation at least in part, and does not need employed in the art up to now packing instrument.

The stratum of Chu Liing can be that wherein a large amount of at least not cement particles are present in any stratum in the stratum in the methods of the invention.Fig. 1 illustrated the example on this stratum.Pit shaft 110 penetrates the different intervals on several stratum of wherein being described; Some intervals comprise bonded section 121,122,123,124 and 125, and some intervals comprise not bonded section 131,132,133 and 134, and they have comprised at least in a large number not cement particle.These not cement particle can comprise, especially, the grains of sand, gravel, particulate and/or the proppant particles in the stratum in one or more fissured open spaces (for example, in the crack, forming the uncemented proppant particles of proppant pack).Proppant particles can be made up of any material of underground workings that is applicable to.Example includes, but are not limited to: the grains of sand, bauxite, stupalith, glass material (for example, granulated glass sphere), polymer materials,

Material, nutshell fragment, plant the skin fragment, contain the nutshell fragment cured resin matter particle, contain kind of skin fragment cured resin matter particle, fruit stone fragment, contain cured resin matter particle, timber, composite particles and their combination of fruit stone fragment.Equally also can use composite particles, wherein suitably matrix material can comprise tackiness agent and packing material, and wherein suitable packing material comprises silicon-dioxide, alumina, cigarette charcoal (fumed carbon), carbon black, graphite, mica, titanium dioxide, orthosilicate, Calucium Silicate powder, kaolin, talcum, zirconium white, boron, flying dust, hollow glass micropearl, solid glass, ground nut skin/kind of skin or shell, sawdust, ground cellulosic fibre and their combination.Usually, particle has about 2 sizes to about 400 orders (U.S.mesh series) scope.In special specific embodiments, the particle size distribution scope is one or more kinds in 6/12 order, 8/16,12/20,16/30,20/40,30/50,40/60,40/70 or 50/70 order.Should be appreciated that employed in this article term " particle " comprises the material of whole known form, described material comprises spheric material, fibrous material, Polygons material (for example cubes material) and their mixture basically.In addition, generally include fibrous material, especially can use it for the pressure of burden closed fracture.In some specific embodiments, proppant particles can scribble known suitable resin of any those of ordinary skills or tackifier.

Can run through the stratum of handling in the methods of the invention with pit shaft, can introduce jointing compound and/or working fluid by this pit shaft, for example, shown in pit shaft among Fig. 1 110.The pit shaft that runs through processed stratum can comprise one or more transfer lime or string of casing (for example, " telescopic " or " part telescopic " pit shaft), shown in Fig. 1 pit shaft 110 middle sleeves 140.In some specific embodiments, pit shaft can be a telescopic not.In some specific embodiments, the pit shaft that runs through the stratum especially can comprise one or more screen clothes and/or gravel packing layer, thereby reduces the migration of formation sands in pit shaft.In other specific embodiments, pit shaft can not comprise this screen cloth or gravel packing layer (for example, " not having and sieve " pit shaft).

At the pit shaft that runs through processed ground layer segment partly is in telescopic or those specific embodiments of part telescopic, the dynamic shunt instrument can pass through eyelet or hole to allow inside pipe casing and annular space (promptly in the sleeve pipe by control, space between well bore wall and the bushing outer surface) fluid is communicated with between, thereby liquid and/or jointing compound are introduced in the stratum.Referring now to Fig. 1, can in the sleeve pipe in being arranged on pit shaft 110 140, produce one or more eyelets 150, thereby allow the not fluid connection between the bonded section 134 of inside pipe casing and stratum.In some specific embodiments, can use the dynamic shunt instrument in sleeve pipe, to form those eyelets or hole, for example, by (for example containing abrasive material, particulate material such as the grains of sand, gravel, degradable granule etc.) fluid is pushed internal surface of casing to and/or is pushed fluid to internal surface of casing with enough high pressure, thereby forms eyelet or hole in sleeve pipe.In other specific embodiments, can be before carrying out method of the present invention or between use other method to form eyelet or hole.In some specific embodiments, can discharge the particle that is present in telescopic eyelet or the hole by jointing compound (fluid that perhaps contains jointing compound), this especially can strengthen or recover the fluid flow by those eyelets in the sleeve pipe or hole.

Referring now to Fig. 2, dynamic shunt instrument 210 can be positioned in the pit shaft with the pipeline that comprises 220 flexible tubings (coiled tubing) or jointed rod (jointed pipe).Dynamic shunt instrument 210 placed be adjacent to the not pit shaft part of bonded section 134 of stratum.Referring now to Fig. 3, can jointing compound be introduced in the dynamic shunt instrument 210 by flexible tubing or jointed rod 220, this instrument can be inducted into jointing compound 320 the not bonded section 134 on stratum.

In some specific embodiments, may not expect to use some can be to be enough to that the ground layer segment is corroded and/or disruptive pressure comes the dynamic shunt tool kind of propelling fluid.Yet in some specific embodiments, perhaps expectation uses some can come the dynamic shunt tool kind of propelling fluid with the pressure that is enough to penetrate the gravel packing layer that is present in the pit shaft and/or screen cloth.Rely on the help of this paper, a those of ordinary skill of this area can be according to various factors, comprise the length of interval in the structure on the speed of required fluid stream and/or pressure, stratum and composition, the processed stratum etc., recognize a certain application-specific for the inventive method, when suitable or improper certain type dynamic shunt instrument is.To have described the example of the dynamic shunt instrument that can be suitable for the inventive method among the II of lower section.

Method of the present invention can choose wantonly be included in carry out before the inventive method, among or a bit in the stratum, provide and introduce one or more pretreatment fluids (preflush fluid) afterwards arbitrarily.Usually, can inject pretreatment fluid in any time before jointing compound is introduced the stratum.In some embodiment, especially pretreatment fluid can be applied in the stratum from the pore space of formation matrix (matrix), (for example to remove unwanted material, oil, resistates or fragment), remove the eyelet of string of casing or this material that do not need in the hole, and/or prepare (prepare) stratum for the placement of jointing compound subsequently.For example, acid pretreatment fluid can be introduced at least a portion on stratum, this especially can dissolve and not need material in the stratum.Can this pretreatment fluid be introduced in stratum by the dynamic shunt instrument, be pumped directly into the annular space between the string of casing of well bore wall and earth penetrating, perhaps be introduced in the stratum with any other proper method.Usually, introduce the volume of pretreatment fluid in the stratum between 0.1 times to 50 times of jointing compound volume.The suitable pretreatment fluid example that uses with the present invention has been described in lower section III.A in more detail.

Optional can being included in the ground layer segment of method of the present invention placed static splitting agent (static divertingagent).As employed here, term " static splitting agent " be defined as comprise can from one specifically layer segment with the fluid diverting flow to another ground layer segment any static splitting agent or instrument (for example, chemical, fluid, particle or equipment).Especially, the static splitting agent can help to control the placement of jointing compound in the required area.Suitably the example of static splitting agent comprises, but be not limited to: fluid (for example, water base and/or non-water base fluid), emulsion, gel, foam, degradation material are (for example, polyester, ortho ester, poly-(ortho ester), poly-acid anhydrides, anhydrate organic and/or mineral compound), particle, pkr (for example, accurately pkr and selectivity are injected pkr), stop up ball, packing equipment, particle, sand plug, bridging plug etc.Rely on the help of this paper, it will be recognized by those skilled in the art when should use the static splitting agent in the method for the invention, and the suitable kind of static splitting agent placement.

Method of the present invention can be used for the not single interval in the bonded section of solid formation, perhaps can repeat the several different intervals in the solid formation.Referring now to Fig. 3, for example, dynamic shunt instrument 210 can be arranged on pit shaft inside at first, so that jointing compound 320 is introduced in the specific interval 134 of ground layer segment.As shown in Figure 4, after jointing compound 320 is introduced this specific intervals 134, dynamic shunt instrument 210 can be resetted, so that in another interval 133 with jointing compound 420 introducing stratum the interval of the more approaching surface of interval of first processing (for example, than).As shown in Figure 5, comprise stratum not bonded

section

132 and 131 interval, can repeat this method, jointing compound 520 is introduced those parts on stratum for any amount of other.In the specific embodiments of handling several different intervals, these several intervals can be run through by a pit shaft, different adjacent well bore or not contiguous different pit shafts.As shown in Figure 5, after the processing of one or more interval, dynamic shunt instrument 210 can be repositioned at the bottom of pit shaft 110 then.

Method of the present invention can be chosen wantonly and comprise in the stratum and to provide and to apply one or more aftertreatment fluids (afterflush fluid) with any process method step.Usually, can inject aftertreatment fluid in any time after jointing compound is introduced the stratum.When using, preferably when jointing compound still is in flow state, aftertreatment fluid is put into the stratum.For example, can before aftertreatment fluid be put into the stratum at closing well phase (shut-in period).In some specific embodiments, aftertreatment fluid can be put on the stratum, in particular for the activation jointing compound, and/or by from pore channel wherein, discharging at least a portion jointing compound or forcing the jointing compound part of discharge further to enter the stratum, its influence to hydrocarbon production subsequently is insignificant in this stratum, thereby recovers the perviousness on a part of stratum.Can this aftertreatment fluid be introduced in stratum by the dynamic shunt instrument, be pumped directly into the annular space between the string of casing of well bore wall and earth penetrating, perhaps be introduced in the stratum with any other proper method.As shown in Figure 6, in pit shaft 110, dynamic shunt instrument 210 can be resetted, and use it for the aftertreatment fluid 660 in the circulation pit shaft, thereby recover the fluid circulation in

pit shaft

611 and 612 parts, described

pit shaft

611 and 612 parts are adjacent to agglutinating

subterranean formation zone

133 and 134 in the methods of the invention.As shown in Figure 7, can repeat this method at each interval and return to whole length of pit shaft 711, the dynamic shunt instrument can be removed from pit shaft then up to fluid circulation.Usually, the aftertreatment fluid volume of introducing the stratum the jointing compound volume about 0.1 times to about 50 times scope.In specific embodiments more of the present invention, the aftertreatment fluid volume of introducing the stratum is in the about 0.1 times of about 5 times scope extremely that be the jointing compound volume.The suitable aftertreatment fluid example that uses with the present invention has been described in lower section III.A. in more detail.

Method of the present invention can carry out before the underground workings of any kind of in the stratum, with it in conjunction with or use afterwards, these underground workingss comprise, but be not limited to: frac job, gravpack operation, frac-pack operation (that is the combination of pressure break and gravpack operation) etc.For example, method of the present invention can be used after frac job sometimes, and method wherein of the present invention is used at least in part gluedly being positioned at one or more and making during frac job or the proppant particles of the inside, crack of deepening.In some specific embodiments, method of the present invention is suitable for the instrument on other additive or working fluid introducing stratum is introduced those additives and working fluid in the stratum optional can comprising by the dynamic shunt instrument and/or by any other, and described other additive and working fluid be relative permeability activator, propping agent, tensio-active agent, gas, biocide, acid or any other suitable additive or working fluid for example.

II. dynamic shunt instrument

Method of the present invention utilizes the dynamic shunt instrument that working fluid is introduced in the stratum.It is used for suitable dynamic shunt instrument of the present invention and can comprises any assembly, as long as can change the fluid velocity that (for example, increasing) enters the stratum according to fluid velocity in the pit shaft.In some specific embodiments, the dynamic shunt instrument can comprise and (for example has at least one port on it, nozzle or spout) pipeline (for example, flexible tubing, drilling rod etc.), this pipeline can enter the stratum with required direction directed flow with the fluid from pipeline inside.Suitably the example of dynamic shunt instrument comprises, but be not limited to: port sub-component (ported subassemblies), hydroblasting instrument (hydroblast tool) and hydrajet tool (hydrajetting tool), comprise described in following United States Patent (USP) and the patent application those, their associated viscera is incorporated into by reference at this: U.S. Patent number 5,765,642; U.S. Patent number 5,249,628; U.S. Patent number 5,325,923; U.S. Patent number 5,499,678; U.S. Patent number 5,396,957; East, people's such as Jr. U.S. Patent Application Serial Number 11/004,441.In some specific embodiments, the dynamic shunt instrument can comprise acoustic tool or pulsonic instrument (for example, can apply the instrument of the pressure pulse with given amplitude and frequency to fluid).Suitable acoustics and pulsonic tool instance include, but are not limited to: fluidic oscillator and those equipment of describing in people's such as Nguyen U.S. Patent Application Serial Number 10/863,706, the associated viscera of the document is incorporated into by reference at this.Comprise in the embodiment of pulsonic instrument at the dynamic shunt instrument, especially can be by the acoustic energy that the pulsonic instrument produces together with employed jointing compound, the not cement particle in the further good ground.In some specific embodiments, the dynamic shunt instrument can be included in the not glued bushing pipe that has nozzle on bushing pipe (liner) outside surface.

Can select to be used for the suitable dynamic shunt instrument of specific end use of the present invention according to various factors, these factors comprise interval in the structure on the speed of required fluid stream and/or pressure, stratum and/or composition, the processed stratum length, be introduced into the fluidic specific composition on stratum etc.For example, in some specific embodiments, may not expect to use some can be to be enough to that the ground layer segment is corroded and/or disruptive pressure comes the dynamic shunt instrument of propelling fluid.Rely on the help of this paper, those of ordinary skills can recognize that for the specific end use of the inventive method, the dynamic shunt instrument of which kind is suitable.

III. fluid

In some specific embodiments, the component that jointing compound can be used as one or more working fluids of introducing the stratum provides and/or introduces in the stratum.These working fluids can comprise any fluid, as long as this fluid with other component or stratum used according to the invention disadvantageous effect does not take place.This working fluid can be water base or non-water base.Water base working fluid can comprise fresh water, salt solution, bittern, seawater or their combination.Non-water base working fluid can comprise one or more organic liquids, for example hydrocarbon (for example, kerosene, dimethylbenzene, toluene or diesel oil), oil (for example, mineral oil or synthetic oil), ester etc.

The pretreatment fluid and the aftertreatment fluid that are used for some embodiment of the present invention can comprise any fluid, as long as this fluid with other component or stratum used according to the invention disadvantageous effect does not take place.For example, pretreatment fluid or aftertreatment fluid can be water-based fluid, hydrocarbon-based fluids (for example, kerosene, dimethylbenzene, toluene, diesel oil, oil etc.) or gas (for example, nitrogen or carbonic acid gas).Water-based fluid can comprise fresh water, salt solution, bittern or seawater, or any other aqueous fluid, as long as it with other component or stratum used according to the invention disadvantageous reaction does not take place.In some specific embodiments, water base pretreatment fluid or aftertreatment fluid can comprise tensio-active agent.For example, can use any among the present invention and the matched tensio-active agent of employed processing subsequently (for example, jointing compound), thereby help jointing compound to flow to the point of contact between adjacent particle in the stratum.This tensio-active agent comprises, but is not limited to: the ethoxylized nonylphenol phosphoric acid ester, one or more plant cationic surfactant, one or more plant nonionic surface active agent and phosphonate ester surfactant mixtures.U.S. Patent number 6,311 has been described one or more in 773 and has been planted the suitable mixture of cationic and nonionic surface active agent, and the associated viscera of the document is incorporated into by reference at this.Preferred C ₁₂-C ₂₂The alkyl phosphonic acid ester surfactant.Employed one or more tensio-active agents can be present in pretreatment fluid or the aftertreatment fluid with a certain amount of, and this amount is enough to make the stratum to be ready to accept the processing of jointing compound.In specific embodiments more of the present invention,, contain 0.1% the tensio-active agent to about 3% scope of having an appointment in pretreatment fluid or the aftertreatment fluid in the weight of the aqueous solution.

The working fluid that uses in the inventive method, pretreatment fluid and/or aftertreatment fluid can comprise many extra additives, include, but are not limited to: salt, tensio-active agent, acid, fluid loss reducing agent, gas, pore forming material, sanitas, scale inhibitor, catalyzer, clay control agent, biocide, friction reducer, defoamer, bridging agent, dispersion agent, flocculation agent, H ₂S scavenging agent, CO ₂Scavenging agent, Oxygen Scavenger, lubricant, viscosity increaser, cracking agent, weighting agent, relative permeability activator, particulate material (for example, proppant particles) etc.In some specific embodiments, working fluid, pretreatment fluid and/or aftertreatment fluid can comprise activator or catalyzer, and they especially can be used to activate the polymerization of jointing compound.Rely on the help of this paper, it will be recognized by those skilled in the art for certain specific end use the additive types that can contain in working fluid, pretreatment fluid and/or the aftertreatment fluid.

IV. jointing compound

The suitable jointing compound that is used for the inventive method comprises any composition that can the good ground part, and said composition at least can partially stabilized not cement particle, thereby stops them to move or move.Suitably but the example of jointing compound comprises (gelable) liquid composition of resin, tackifier and gelation.

A. resin

Be suitable as that the resin of jointing compound comprises any suitable resin that can form sclerosis, agglutinating material (mass) in the inventive method.Here employed term " resin " comprises the natural resin of any numerous synthetics of similar polymerization physically or chemical modification, yet comprises and be not limited to thermoplastic material and thermosetting material.Many this resins are generally used for subterranean consolidation operations, and some suitable resins comprise bi-component epoxy base resin, resol, poly epoxy resin, phenol aldehyde resin (phenol-aldehyde resin), urea-formaldehyde resin, urethane resin, resol (phenolic resin), furane resin, furans/furfuryl alcohol resin, phenolic aldehyde/latex resin, phenol formaldehyde resin (phenol formaldehyde resin), vibrin and their mixture and multipolymer, urethane resin and their mixture and multipolymer, acrylate resin, and their mixture.The resin that some are suitable, for example Resins, epoxy can be solidified by internal activator or activator, so that when pumped downhole, only they can be solidified with the time and the temperature that need.Other suitable resin, furane resin for example, may stipulate and under the speed that postpones, to solidify, if perhaps solidification value is low (promptly, less than 250 ℉), need delayed catalyst (time-delayed catalyst) or external catalyst to activate resin polymerization with help, yet if formation temperature is higher than about 250 ℉, preferably be higher than about 300 ℉, these resins can solidify under the effect of time and temperature.Can pass through dynamic shunt instrument a kind of component of working fluid (for example, as) and/or some other means (for example, being pumped into annular space) this external catalyst is introduced the stratum from the face of land.Rely on the help of this paper, those skilled in the art can select to be used for the suitable resin of specific embodiments of the present invention and need determine whether catalyzer to cause to solidify.

The temperature that will introduce the fluidic stratum may influence suitable resin choice.For example, for having the stratum of about 60 ℉, but can preferably contain the hardening resin component and comprise the bi-component epoxy base resin of the hardener component of special curing agent to the bottom-hole static temperature (" BHST ") of about 250 ℉.For having the stratum of about 300 ℉ to about 600 ℉ BHST, preferably furan-based resin.For having the stratum of about 200 ℉ to about 400 ℉ BHST, phenolic group resin or single component HT epoxy can be suitable.For the stratum that has at least about 175 ℉ BHST, phenol/phenol formaldehyde/furfuryl alcohol resin also can be suitable.

Any and selected resin compatible and the solvent that reaches required viscosity effect can both be used for the present invention.Especially owing to environment and security consideration, some preferred solvents are those solvents with high flash point (for example, about 125 ℉); This solvent comprises n-Butyl lactate, butylglycidyl ether, dipropylene glycol methyl ether, dipropylene glycol dme, dimethyl formamide, diethylene glycol dimethyl ether, butyl glycol ether, Diethylene Glycol butyl ether, propylene carbonate, methyl alcohol, butanols, dextrorotation hesperidene, fatty acid methyl ester and their combination.Other preferred solvent comprises water-soluble solvent, for example, and methyl alcohol, Virahol, butanols, glycol ether solvent and their combination.Suitable glycol ether solvent includes, but are not limited to: diethylene glycol dimethyl ether, dipropylene glycol methyl ether, butoxy ethanol, contain at least one C ₁To C ₆The C of alkyl ₂To C ₆Dihydroxyl alkanol ether, dihydroxyl alkanol monoether, methoxypropanol, butyl cellosolve, hexyloxy ethanol and their isomer.Rely on the help of this paper, those skilled in the art have the ability to select appropriate solvent according to selected resin.

B. tackifier

The tackifier that are applicable to the inventive method show adhesive characteristics, and therefore give not cement particle gluing to a certain degree in the stratum.Here Ding Yi term " tackifier " comprises any composition with a kind of like this character, its (perhaps can be activated and become) some viscosity when touching.In some specific embodiments, can prepare tackifier, thus by contacting with catalyzer or activator, (for example, temperature) perhaps under certain conditions, it is " activated " with the speed that postpones.The suitable tackifier example that is suitable among the present invention comprises non-water tackifier, moisture tackifier and silyl-modified polymeric amide.

Type of adhesion promoter among a kind of the present invention of being suitable for is non-water tackifier.Suitably the example of tackifier can be included in liquid polymeric amide or the polyamide solution under the formation temperature, thereby when being introduced into the stratum, they self are unsclerotized.An example of this tackifier comprises the condensation reaction products of being made up of commercially available polyprotonic acid and polyamine.Suitably commerical prod comprises for example C ₃₆The compound of diprotic acid mixture, described C ₃₆Diprotic acid comprises and some trimer acids of polyamine reaction and oligomeric acid and the small amounts of monomer acid of Geng Gao.Other polyprotonic acid comprises trimer acid, by the synthetic acid of lipid acid preparation, maleic anhydride, vinylformic acid etc.This acid compound can be commercially available from the company such as Witco Corporation, Union Camp, Chemtall and EmeryIndustries.Reaction product can by, for example, Champion Technologies, Inc. and Witco Corporation obtain.Can comprise for example liquid and the solution of polyester, polycarbonate and polyurethane(s) as other compounds of non-water tackifier, for example the natural resin of shellac etc.U.S. Patent number 5,853 has been described other suitable non-water tackifier in 048 and 5,833,000, and the associated viscera in these documents is incorporated into by reference at this.

Can use to be suitable for non-water tackifier of the present invention, perhaps they multifunctional materials with energy and non-water tackifier reaction formation hardening coat can be combined so that they form non-hardening coat.Here employed " hardening coat " is meant that the reaction of tackifier and multifunctional material will produce not flowable basically reaction product, and this product demonstrates more independent with the higher ultimate compression strength of particle than tackifier in glued agglomerate.In this case, but non-water tackifier can play the function similar to hardening resin.Being suitable for multifunctional material of the present invention includes, but are not limited to: aldehyde, for example formaldehyde; Dialdehyde, for example glutaraldehyde; Discharge the compound of hemiacetal or aldehyde; The halogenation diacid; Dihalide, for example dichloride and dibromide; Multi-anhydride, for example citric acid; Epoxide; Furfural; Glutaraldehyde or aldehyde condensate etc., and their combination.In some specific embodiments of the present invention, multifunctional material can mix with tackifier, its amount for tackifier weight about 0.01 to about 50%, thereby the formation of realization response product.In some preferred specific embodiments, multifunctional material exists with about 0.5 to about 1% amount of tackified compound weight.U.S. Patent number 5,839 has been described suitable multifunctional material in 510, and the associated viscera in the document is incorporated into by reference at this.

Be fit to comprise that any and non-water tackifier are compatible and to reach the solvent of required viscosity effect with the solvent that non-water tackifier use.Can be used for solvent of the present invention and preferably include the solvent that those have high flash point (most preferably more than about 125 ℉).Being suitable for examples of solvents of the present invention includes, but are not limited to: butylglycidyl ether, dipropylene glycol methyl ether, butyl bottom alcohol, dipropylene glycol dme, diethylene glycol dimethyl ether, butyl glycol ether, methyl alcohol, butanols, Virahol, Diethylene Glycol butyl ether, propylene carbonate, dextrorotation hesperidene, butoxy ethanol, N-BUTYL ACETATE, furfuryl acetate, n-Butyl lactate, methyl-sulphoxide, dimethyl formamide, fatty acid methyl ester and their combination.Rely on the help of this paper, those skilled in the art need can determine whether solvent reaching the viscosity that is suitable for underground condition, and if desired, then what need.

When it did not have remarkable viscosity when moisture tackifier of the present invention placed on the particle being suitable for, but it can be " activated " in the required time (that is, making its instability, coalescent and/or react) thus change compound into compound viscosity, tackify.Can be before moisture tackifier be placed the stratum, during or carry out this activation afterwards.In some specific embodiments, can at first carry out pre-treatment to particle surface so that it is ready to be coated with by moisture tackifier.Suitable moisture tackifier normally contain the electropolymer of such compound: when in aqueous solvent or solution, these compounds can form non-hardening coat (formed by self or form with activator and/or catalyzer), and in the time of on being placed on particle, when contacting with current, it can increase particulate continuous breakpoint resuspending speed (continuouscritical resuspension velocity).Moisture tackifier can strengthen the intergranular contact between each particle in the stratum (they are proppant particles, formation particles or other particle), help to cause that pearl glue forms bonding, flexible and infiltrative material.When using, activator and/or catalyzer can be the components that contains moisture tackifier working fluid, perhaps can pass through the dynamic shunt instrument component of working fluid (for example, as) or some other means (for example, they being pumped into annular space) they are introduced the stratum respectively from the face of land.

The example that is applicable to moisture tackifier of the present invention includes, but are not limited to: acrylate copolymer, acrylic ester polymer, the acrylic acid derivative polymkeric substance, acrylate homopolymer, Voncoat R 3310 (for example poly-(methyl acrylate), poly-(butyl acrylate) and poly-(ethyl acrylate)), acrylate copolymer, the methacrylic acid derivative polymkeric substance, the methacrylic acid homo thing, methacrylic acid ester homopolymer (for example poly-(methyl methacrylate), poly-(butyl methacrylate) and poly-(methacrylic acid-2-ethylhexyl)), acrylamido-methyl-propanesulfonic acid ester polymer, acrylamido-methyl-propanesulfonic acid ester derivative polymkeric substance, acrylamido-methyl-propanesulfonic acid ester copolymer, and acrylic acid base-methyl-propanesulfonic acid ester copolymer, and their combination.Here defined term " derivative " comprises, for example, by replace a kind of listed compound of an atom, ionization in the listed compound with another atom or atomic group, perhaps prepare a kind of salt of listed compound, thereby by a kind of any compound of listed compound.The Application No. of submitting on June 9th, 2,004 10/864,061, and the Application No. of submitting on June 9th, 2,004 10/864, the method of determining suitable moisture tackifier is disclosed in 618 and about the other guide of moisture tackifier, the associated viscera of these documents incorporates into by reference at this.

The silyl-modified polyamide compound that is suitable in the tackifier of the inventive method can be described as the composition of self-hardening basically, they can, for example, in stratum or proppant pack porosity, adhere to particle with unhardened state to small part, and further can be with own self-hardening to each particle of formation particles inviscid basically state not adhered thereto.For example, this silyl-modif iotaed polyamides can be based on the reaction product of compound and the polymeric amide or the polyamide compound of silylation (silating).Polymeric amide or polyamide compound can be that one or more plant polyamide intermediate compounds obtained, for example, they can obtain to form the dehydration polyamide polymer by the reaction by polyprotonic acid (for example, diprotic acid or more polybasic acid) and polyamine (for example, diamine or more polybasic amine).U.S. Patent number 6,439, the method for having described other suitable silyl-modified polymeric amide and having prepared this compound in 309, the associated viscera in the document is incorporated into by reference at this.

Described some suitable tackifier in people's such as Harms the U.S. Patent number 5,249,627, the associated viscera in the document is incorporated into by reference at this.Harms openly comprises and is selected from following at least a moisture tackifier: benzyl cocoa two (hydroxyethyl) quaternary amine (benzyl coco di-(hydroxyethyl) quaternaryamine), with the right-uncle-amyl phenol of formaldehyde condensation and contain 80% to about 100% the C of having an appointment _1-30Alkylmethacrylate monomer and about 0% multipolymer to about 20% hydrophilic monomer.In some specific embodiments, moisture tackifier can comprise and contain have an appointment 90% to about 99.5% ethyl acrylate and acrylic acid multipolymer of about 0.5% to about 10%.Suitably hydrophilic monomer can be any monomer that can provide polarity to contain oxygen or nitrogen-containing group.Suitable hydrophilic monomer comprises (methyl) propenoic acid dialkyl aminoalkyl ester and their quaternary affixture (quaternary addition) and acid-salt, acrylamide, N-(dialkyl aminoalkyl) acrylamide, Methacrylamide and their quaternary affixture and acid-salt, hydroxyalkyl (methyl) acrylate, for example methacrylic acid or preferred acrylic acid unsaturated carboxylic acid, hydroxy ethyl methacrylate, acrylamide etc.These multipolymers can prepare by any suitable emulsion polymerization technology.For example, at U.S. Patent number 4,670, disclose the preparation method of these multipolymers in 501, the associated viscera of the document is incorporated into by reference at this.

But the liquid composition of gelation C.

But but the liquid composition that is suitable for the gelation in the inventive method can comprise the liquid composition of the gelation of any material that can change into gelation, and the perviousness that the material of described gelation can stop up the stratum basically makes the stratum keep snappiness simultaneously.That is to say that the material of gelation can for example produce that the required fluidic ability of hydro carbons has a negative impact to the stratum.Just as discussed above, the perviousness on stratum can be by using aftertreatment fluid to recover or coming through crack by bonded section.As what mentioned here, term " snappiness " is meant a kind of like this state, and wherein treated stratum or material have extensibility relatively and retractility is arranged, and can stand a lot of pressure cycling and do not have substantial destruction.Thereby the material of the gelation that is generated should be semi-solid, not removable, gelationus material, and especially, it is stablized treated ground layer segment and allows the stress that produces during the formation absorption pressure cycling simultaneously.Thereby, the material of gelation can be simultaneously by the good ground grains of sand with help prevent the destruction on stratum by the snappiness that increases formation sands.Suitably but the example of the liquid composition of gelation includes, but are not limited to: but curing is with aqueous silicate compositions, crosslinkable aqueous polymer composition and the polymerisable organic monomer composition of the resin combination gelation of formation flexible gels.

But some specific embodiments of the liquid composition of gelation comprises curable resin combination.To those skilled in the art, curable resin combination is well-known, and it has been used to make the gluing of unconsolidated subterranean formations part and the proppant material gluing is hard, permeable material.Though curable resin composition used according to the invention is used for the grains of sand and propping agent gluing are composition hard, permeable masses before can being similar to those, is not cured as hard, permeable material yet their difference is the resin that is fit to use with the present invention; On the contrary, they are cured as material pliable and tough, gelation.That is to say that suitable curable resin composition forms the material of elastogelization between the particle of the treated part of unconsolidated subterranean formations, thereby make the ground layer segment keep snappiness to destroy with antagonism.The solidified resin combination is solidified and harden so that high consolidation strength is provided is unnecessary or do not expect for the treated part in stratum.On the contrary, in case solidify, useful curable resin composition according to the present invention forms the material of semisolid, immovable, gelation.

Usually, useful curable resin composition can comprise curable resin, thinner and resin curing agent according to the present invention.Use some resin curing agent in curable resin composition, for example during polymeric amide, said composition forms the material of above-mentioned semisolid, immovable, gelation.May cause organic resin composition to form in the situation of material of hard, hard brittle material rather than required gelation at employed resin curing agent, curable resin composition can further comprise one or more kinds " flexibilizer additive " (following will the description in more detail), thereby provides snappiness for curing composition.

The curable resin example that can be used for curable resin composition of the present invention comprises, but be not limited to: organic resin, for example poly-epoxide resin (for example, dihydroxyphenyl propane-epichlorohydrin resin), vibrin, urea-formaldehyde resin, furane resin, urethane resin and their mixture.In these, preferred poly-epoxide resin.Any thinner compatible with curable resin and that reach required viscosity effect all is applicable to the present invention.The thinner example that can be used for curable resin composition of the present invention includes, but are not limited to: phenol; Formaldehyde; Furfuryl alcohol; Furfural; Alcohol; Ether, for example butylglycidyl ether and cresyl glycidyl ether, phenyl glycidyl ether; And their mixture.In specific embodiments more of the present invention, thinner comprises n-Butyl lactate.The viscosity drop that thinner is used under 80 ℉ curable resin composition is low to moderate about 3 to about 3,000 centipoises (" cP ").Especially, thinner has played to curing composition flexible effect is provided.Thinner can be to be enough to the providing amount of required viscosity effect to be present in the curable resin composition.Usually, employed thinner is present in the curable resin composition with about 5% to about 75% amount of curable resin weight.

Usually, any resin curing agent that can be used for solidifying organic resin all is applicable to the present invention.When selected resin curing agent is acid amides or polymeric amide, do not need flexibilizer additive usually, this is especially because this solidifying agent causes curable resin composition to change the material of semisolid, immovable, gelation into.Other suitable resin curing agent (such as other known solidifying agent in amine, polyamines, methylenedianiline and this area) will trend towards being solidified into hard, fragile materials, thereby will benefit from the adding of flexibilizer additive.Usually, no matter whether add flexibilizer additive, employed resin curing agent is present in the curable resin composition with about 5% to about 75% amount of curable resin weight.In specific embodiments more of the present invention, employed resin curing agent is present in the curable resin composition with about 20% to about 75% amount of curable resin weight.

As mentioned above, flexibilizer additive can be used for, especially, for the material of the gelation that formed by curable resin composition provides snappiness.Here defined term " flexibilizer additive " comprises anyly can give the material of flexible nature (for example, ductile, elasticity) for the material of the gelation that formed by curable resin composition.May cause organic resin composition to be cured as hard and fragile materials at selected resin curing agent, rather than in the situation of the material of required gelation described here, should use flexibilizer additive.For example, when selected resin curing agent is not acid amides or polymeric amide, can use flexibilizer additive.Suitably the example of flexibilizer additive includes, but are not limited to: the organic solvent of organic ester, oxidation, aromatic solvent and their combination.In these materials, preferred ether, for example dibutyl phthalate.When using, flexibilizer additive can be present in the curable resin composition with about 5% to about 80% amount of curable resin weight.In specific embodiments more of the present invention, flexibilizer additive can be present in the curable resin composition with about 20% to about 45% amount of curable resin weight.

In other specific embodiments, but but the liquid composition of gelation can comprise the aqueous silicate compositions of gelation.Usually, but can be used for the temperature-activated catalyzer that the aqueous silicate compositions of gelation of the present invention comprises alkali metal silicate aqueous solution usually and is used for this alkali metal silicate aqueous solution of gelling.

But the alkali metal silicate aqueous solution component of the alkali silicate compound of gelation comprises liquid, aqueous and alkalimetal silicate usually.The liquid, aqueous component of alkali metal silicate aqueous solution can be usually fresh water, salt solution (for example, contain the water that one or more kinds are dissolved in salt wherein), bittern (for example, saturated salt solution), seawater or any other liquid, aqueous, if its discord other component used according to the invention or and the stratum disadvantageous effect takes place.Suitably the example of alkalimetal silicate includes, but are not limited to: one or more kinds in water glass, potassium silicate, lithium silicate, rubidium silicate or the cesium silicate.In these materials, preferred water glass.Though water glass exists with many forms, the water glass that is used for alkali metal silicate aqueous solution preferably has the Na of about 1:2 to about 1:4 ₂O-SiO ₂Weight ratio.Most preferred, employed water glass has the Na of about 1:3.2 ₂O-SiO ₂Weight ratio.Usually, alkalimetal silicate is present in the alkali metal silicate aqueous solution component with about 0.1% to about 10% amount of alkali metal silicate aqueous solution composition weight.

But use the temperature-activated catalyst component of the aqueous silicate compositions of gelation, especially, but be used for changing the aqueous silicate compositions of gelation into the semisolid of aforesaid expectation, the material of immovable, gelation.But the temperature-activated selection of catalysts is relevant with the formation temperature that the aqueous silicate compositions of gelation can be introduced into to small part.But the temperature-activated catalyzer that can be used for the aqueous silicate compositions of gelation of the present invention comprises, but is not limited to: ammonium sulfate, and it is adapted at about 60 ℉ most to the scope of about 240 ℉; Sodium acid pyrophosphate, it is adapted at about 60 ℉ most to the scope of about 240 ℉; Citric acid, it is adapted at about 60 ℉ most to the scope of about 120 ℉; And ethyl acetate, it is adapted at about 60 ℉ most to the scope of about 120 ℉.Usually, but the temperature-activated catalyzer exist with about 0.1% to about 5% scope of the aqueous silicate compositions weight of gelation.When using, but the catalyzer of temperature-activated can be the component that contains the aqueous silicate compositions working fluid of gelation, perhaps can be (for example by the dynamic shunt instrument, component as working fluid) or some other means (for example, they being pumped into annular space) from the face of land they are introduced the stratum respectively.

In other specific embodiments, but the liquid composition of gelation can comprise crosslinkable aqueous polymer composition.Usually, suitable crosslinkable aqueous polymer composition can comprise water-containing solvent, crosslinkable polymer and linking agent.

Water-containing solvent can be that cross-linkable composition and linking agent can dissolve, mix, suspend or be scattered in wherein to promote any water-containing solvent of gel formation.For example, employed water-containing solvent can be fresh water, salt solution, bittern, seawater or any other is liquid, aqueous, as long as it with other component or stratum used according to the invention disadvantageous reaction does not take place.

The crosslinkable polymer example that can be used in the crosslinkable aqueous polymer composition includes, but are not limited to: contain carboxylate polymer and contain acrylamide polymer.What preferably contain the multipolymer of polyacrylamide, acrylamide and acrylate that acrylamide polymer comprises polyacrylamide, partial hydrolysis and acrylate contains carboxylicesters terpolymer and tetrapolymer.Other example of suitable crosslinkable polymer comprises the hydratability polymkeric substance that wherein contains polysaccharide and derivative thereof, and described polysaccharide and derivative thereof comprise semi-lactosi, seminose, glucoside, glucose, wood sugar, arabinose, fructose, glucuronic acid or the pyrans glycosyl sulfuric ester (pyranosyl sulfate) of one or more monosaccharide unit.Suitable natural hydratability polymkeric substance comprises, but be not limited to: guar gum, Viscogum BE, tara gum (tara), konjak gum, tamarind, starch, Mierocrystalline cellulose, karaya gum, xanthan gum, tragacanth and carrageenin, and above-mentioned all derivatives.The suitable hydratability synthetic polymer and the multipolymer that can be used for crosslinkable aqueous polymer composition include, but are not limited to: polyacrylic ester, polymethacrylate, polyacrylamide, maleic anhydride, methylvinyl ether polymer, polyvinyl alcohol and polyvinylpyrrolidone.Employed crosslinkable polymer should be present in the crosslinkable aqueous polymer composition with the amount of substance that is enough to the required gelation of formation in the stratum.In specific embodiments more of the present invention, crosslinkable polymer is present in the crosslinkable aqueous polymer composition with about 1% to about 30% amount of aqueous solvent weight.In another specific embodiments of the present invention, crosslinkable polymer is present in the crosslinkable aqueous polymer composition with about 1% to about 20% amount of aqueous solvent weight.

Crosslinkable aqueous polymer composition of the present invention can further comprise and be used for the linking agent of crosslinked crosslinkable polymer with the material that forms required gelation.In some specific embodiments, linking agent can be molecule or the complex compound that contains the active transition metallic cation.Most preferred linking agent contains and negatively charged ion, atomic oxygen or water complexing or bonded trivalent chromium positively charged ion.Suitably the example of linking agent includes, but are not limited to: the compound or the complex compound that contain chromium acetate and/or chromium chloride.Other suitable transition-metal cation comprises chromium VI, aluminium III, iron II, iron III and the zirconium IV in the redox system.

Linking agent especially should be to be enough to the providing amount of required degree of crosslinking to be present in the crosslinkable aqueous polymer composition of the present invention.In specific embodiments more of the present invention, linking agent is present in the crosslinkable aqueous polymer composition of the present invention with 0.01% to about 5% amount of crosslinkable aqueous polymer composition weight.The accurate type of the linking agent that uses (one or more) and quantity depend on crosslinked concrete crosslinkable polymer, formation temperature conditions and other factor known to those skilled in the art treated.

Randomly, crosslinkable aqueous polymer composition can further comprise crosslinked delayed-action activator, for example derives from the crosslinked delayed-action activator of polysaccharide of guar gum, melon that derivative or derivatived cellulose.Especially can contain crosslinked delayed-action activator in the crosslinkable aqueous polymer composition, thereby postpone the crosslinked of crosslinkable aqueous polymer composition up to meeting the requirements.Rely on the help of this paper, those of ordinary skills will know the appropriate amount of the crosslinked delayed-action activator that crosslinkable aqueous polymer composition contained that is used for required purposes.

In other specific embodiments, the liquid composition of gelation can comprise polymerisable organic monomer composition.Usually, suitable polymerisable organic monomer composition can comprise water-based fluid, water-soluble polymerisable organic monomer, Oxygen Scavenger and primary initiator.

The water-based fluid component of polymerisable organic monomer composition can be that fresh water, salt solution, bittern, seawater or other are any liquid, aqueous usually, as long as disadvantageous reaction is played on its discord other component or stratum used according to the invention.

Multiple monomer is suitable as the water-soluble polymerisable organic monomer among the present invention.Suitable monomeric example comprises; but be not limited to: vinylformic acid; methacrylic acid; acrylamide; Methacrylamide; 2-methacryloyl amido-2-methyl propane sulfonic acid; the 2-DMAA; vinyl sulfonic acid; methacrylic acid N; N dimethylamine base ethyl ester; methacrylic acid-2-triethyl ammonium chloride methyl esters (2-triethylammoniumethylmethacrylate chloride); N; N-dimethyl-aminopropyl methacryloyl-acid amides; Methacrylamide propyl group triethyl ammonium chloride; the N-vinyl pyrrolidone; vinyl phosphonate and methacryloxyethyl trimethylammonium ammonium sulfate, and their mixture.Preferably, water-soluble polymerisable organic monomer should be a self-crosslinking.The suitable monomer example of self-crosslinking includes, but are not limited to: Hydroxyethyl acrylate, vinylformic acid hydroxyl methyl esters, hydroxyethyl methylacrylate, N hydroxymethyl acrylamide, N-methylol-Methacrylamide, polyacrylic acid glycol ester, polymethyl acrylic acid glycol ester, polyacrylic acid propylene glycol ester, polymethyl acid propylene glycol ester and their mixture.In these materials, preferred Hydroxyethyl acrylate.An example of special preferred monomers is Natvosol-vinyl phosphonate.

Water-soluble polymerisable organic monomer (perhaps using the multiple monomer of its mixture) should be with after inserting the stratum with polymerisable organic monomer composition, and the amount of substance that is enough to form required gelation is contained in the polymerisable organic monomer composition.In specific embodiments more of the present invention, water-soluble polymerisable organic monomer (one or more) is contained in the polymerisable organic monomer composition with about 1% to about 30% amount of water-based fluid weight.In another specific embodiments of the present invention, water-soluble polymerisable organic monomer (one or more) is contained in the polymerisable organic monomer composition with about 1% to about 20% amount of water-based fluid weight.

The oxygen that exists in the polymerisable organic monomer composition may suppress the polymerization process of water-soluble polymerisable organic monomer (one or more).Therefore, can contain Oxygen Scavenger, for example tin protochloride in the polymerizable monomer composition.For the solubility of improving tin protochloride so that it can easily immediately combine with polymerisable organic monomer composition, tin protochloride can be dissolved in the hydrochloric acid soln in advance.For example, about 10% the amount of tin protochloride with the gained solution weight can be dissolved in the 0.1 weight % aqueous hydrochloric acid.The gained tin chloride solution can be contained in the polymerisable organic monomer composition with about 0.1% to about 10% amount of polymerisable organic monomer composition weight.Usually, tin protochloride can be contained in the polymerisable organic monomer composition of the present invention with about 0.005% to about 0.1% amount of the weight of polymerisable organic monomer composition.

Use primary initiator, especially, be used for causing the polymerization of the water-soluble polymerisable organic monomer (one or more) that is used for the present invention.Any compound (one or more) that forms free radical in the aqueous solution can be used as primary initiator.Especially, free radical has played and has caused water-soluble polymerisable organic monomer (one or more) the polymeric effect that exists in the polymerisable organic monomer composition.The compound that is suitable as primary initiator includes, but are not limited to: alkali metal persulphate; Superoxide; Use the redox system of reductive agent, for example sulphite and oxygenant; And azo polymerization initiator.Preferred azo polymerization initiator comprises 2,2 '-two (2-imidazoles-2-hydroxyethyl) propane, 2,2 of azo '-azo two (2-aminopropane), 4,4 '-azo two (4-cyanovaleric acid) and 2,2 '-two (2-methyl-N-(2-hydroxyethyl) propionic acid amides of azo.Usually, primary initiator should be present in the polymerisable organic monomer composition to be enough to causing water-soluble polymerisable organic monomer (one or more) polymeric amount.In some specific embodiments of the present invention, primary initiator is present in the polymerisable organic monomer composition with about 0.1% to about 5% amount of water-soluble polymerisable organic monomer (one or more) weight.

Randomly, polymerisable organic monomer composition further can comprise secondary initiator.For example, immature aqueous gel is placed the situation of comparing relative refrigerative stratum with face of land mixture, for example in off-shore operation, placing it in when being lower than mud line, can use secondary initiator.Secondary initiator can be any or multiple can the reaction so that the suitable water-soluble cpds of free radical to be provided at a lower temperature with primary initiator.Suitably the example of secondary initiator is a trolamine.In specific embodiments more of the present invention, secondary initiator is present in the polymerisable organic monomer composition with about 0.1% to about 5% amount of water-soluble polymerisable organic monomer (one or more) weight.

Randomly, polymerisable organic monomer composition of the present invention further can comprise the material that is used in required gelation and makes the crosslinked linking agent of polymerisable organic monomer composition.In some specific embodiments, linking agent can be molecule or the complex compound that contains the active transition metallic cation.Most preferred linking agent contains and negatively charged ion, atomic oxygen or water complexing or bonded trivalent chromium positively charged ion.Suitably the example of linking agent includes, but are not limited to: the compound or the complex compound that contain chromium acetate and/or chromium chloride.Other suitable transition-metal cation comprises chromium VI, aluminium III, iron II, iron III and the zirconium IV in the redox system.Usually, linking agent can be present in the polymerisable organic monomer composition with 0.01% to about 5% amount of polymerisable organic monomer composition weight.

Therefore, the present invention is very suitable for realizing target and advantage and the institute's inherent characteristics thereof mentioned.More than disclosed specific specific embodiments only be illustrative, this is because can revise and put into practice the present invention with different but equivalent mode, to instruct those skilled in the art of help be conspicuous and these modes are for having this paper.Although can make many variations by those skilled in the art, this variation is all within defined the present invention's spirit scope as claims.Further, except that described in the following claim, the details of structure shown in this paper or design all without limits.Therefore obviously, disclosed certain illustrative specific embodiments more than can changing or revise, and all this variations are all thought and are belonged to the spirit and scope of the present invention.Especially, each numerical range disclosed herein (for example, " about a to about b, " or, identical, " about a to b, " or, identical, " about a-b ") should be understood to mean the power set (set of whole subclass) of each numerical range.Unless clearly and clearly define by the patentee in addition, otherwise the term in the claim has their simple, common implications.

Claims

1. method, it comprises:

Jointing compound is provided;

This jointing compound is introduced the not bonded section on stratum by the dynamic shunt instrument; With

Make this jointing compound described not bonded section on glued described stratum at least in part.

2. the method for claim 1, the described not bonded section on wherein said stratum comprises one or more crack in the described stratum.

3. the method for claim 1, but wherein said jointing compound is selected from the liquid composition of resin, tackifier gelation, their derivative and their composition.

4. the method for claim 1, wherein said dynamic shunt instrument is selected from port-sub-component, hydroblasting instrument, hydrajet tool, pulsonic instrument and their combination.

5. the method for claim 1, wherein

Jointing compound is provided, comprises the working fluid that contains described jointing compound is provided; With

Described jointing compound is introduced the not bonded section on described stratum, comprise the described working fluid that contains described jointing compound is introduced the described not bonded section on stratum.

6. the method for claim 1, the described not bonded section on wherein said stratum comprises one or more crack in the described stratum, and wherein a large amount of particles are present in described one or more fissured open space.

7. the method for claim 1, the described not bonded section on wherein said stratum comprises a large amount of uncemented proppant particles.

8. the method for claim 1, it further comprises introduces pretreatment fluid in a part of described stratum.

9. the method for claim 1, it further comprises introduces aftertreatment fluid in a part of described stratum.

10. the method for claim 1, wherein said stratum comprises one or more string of casing, screen cloth, gravel packing layer or their combination.

11. the method for claim 1, it further is included in and places the static splitting agent in a part of described stratum.

12. the method for claim 1, it further comprises by described dynamic shunt instrument, to be enough to make the pressure propelling fluid of a part of described stratum erosion and/or pressure break.

13. a method, it comprises:

Jointing compound is provided;

By the dynamic shunt instrument described jointing compound is introduced the not bonded section on stratum, wherein a large amount of uncemented proppant particles are present in the described stratum; With

Make the described jointing compound interior described uncemented proppant particles of described not bonded section on glued described stratum at least in part.

14. method as claimed in claim 13, but wherein said jointing compound is selected from the liquid composition of resin, tackifier gelation, their derivative and their composition.

15. method as claimed in claim 13, it further is included in and places the static splitting agent in a part of described stratum.

16. method as claimed in claim 13, the described not bonded section on wherein said stratum comprises one or more crack in the described stratum, and wherein a large amount of uncemented proppant particles are present in described one or more fissured open space.

17. a method, it comprises:

Jointing compound is provided;

By the dynamic shunt instrument described jointing compound is introduced the not bonded section on stratum, wherein a large amount of uncemented formation particles are present in the described stratum; With

Make the described uncemented formation particles in the glued at least in part described ground of the described jointing compound layer segment.

18. method as claimed in claim 17, but wherein said jointing compound is selected from the liquid composition of resin, tackifier gelation, their derivative and their composition.

19. method as claimed in claim 17, it further is included in and places the static splitting agent in a part of described stratum.

20. method as claimed in claim 17, the not bonded section on wherein said stratum comprises one or more crack in the described stratum, and wherein said a large amount of uncemented formation particles are present in described one or more fissured open space.